50 Parties It Up In Utah, Raps With Jim Carrey

50 Cent was in Utah over the weekend where he kicked off his star-studded party for the Sundance Film Festival. 50's "Vitamin Water and 50 Cent House" held in a private mansion will feature screenings, yoga sessions with Russell Simmons, workouts with 50 Cent, food by STK and spa treatments by Green Valley Spa. Stop by for a private performance by 50 Cent or Sunday football with Kim Kardashian.

"Jim and Jenny were dancing and really getting into the music, so 50 decided to bring him out to the balcony for a special rendition of 'It's Your Birthday'," a source said. "When Fiddy told the crowd, 'I have a very special guest for you', everyone was floored because he had just done a duet with Robin Thicke. They thought the surprises were over. Then 50 started singing and Jim appeared, and the crowd just lost it. Jim was bumping and grinding with Lloyd Banks. It was pandemonium in the best way." [watch here]

50 Cent was in Utah over the weekend where he kicked off his
star-studded party for the Sundance Film Festival. 50's "Vitamin Water
and 50 Cent House" held in a private mansion will feature screenings,
yoga sessions with Russell Simmons, workouts with 50 Cent, food by STK
and spa treatments by Green Valley Spa. Stop by for a private
performance by 50 Cent or Sunday football with Kim Kardashian.

50 even helped actor Jim Carrey celebrate his birthday on Saturday,
where Jim Carey performed "In Da Club" with 50 Cent. "I've
got some famous friends," 50 told the crowd before he started singing,
"We're gonna party like it's your birthday…"